Wavelet Analysis Increases Sensitivity and Specificity of Spirography for Ambulatory Tremor Discrimination

Table 1

Specificity and sensitivity for diagnosing ET (the number of patients is 15).

Spirography parameter(s)	Specificity ET	Sensitivity ET
Spiral image (S)	0.96	0.84
Wavelet transform scalogram (W)	0.99	0.87
Tremor spectrum (T)	0.89	0.73
S & T	0.97	0.82
S & T & W	0.97	0.91